1. A way to change the Weather so that you disrupt them and likely reduce their damage and/or accuracy.
2. Trick Room, as it is is useful especially in back for speed control
3. A ScreensSpam counter. Could be: Brick Break/Psychic Fangs, Toxic, Nasty Plot, etc
4. A Mega as they are more powerful than the average mon. Possibly 2 Megas but not recommended unless the 1 Mega is inconsistent like Scrafty (When they could have Kingambit).
5. Some Special and Physical attackers
6. 1 Really Fast Mon - Could be a Scarfer